1057136477 has 2 divisors, whose sum is σ = 1057136478. Its totient is φ = 1057136476.

The previous prime is 1057136441. The next prime is 1057136491. The reversal of 1057136477 is 7746317501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980065636 + 77070841 = 31306^2 + 8779^2 .

It is a cyclic number.

It is not a de Polignac number, because 1057136477 - 2⁶ = 1057136413 is a prime.

It is a super-2 number, since 2×1057136477² = 2235075062007943058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1057136407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528568238 + 528568239.

It is an arithmetic number, because the mean of its divisors is an integer number (528568239).

Almost surely, 2^1057136477 is an apocalyptic number.

It is an amenable number.

1057136477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057136477 is an equidigital number, since it uses as much as digits as its factorization.

1057136477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 1057136477 is about 32513.6352473851. The cubic root of 1057136477 is about 1018.6938545494.

The spelling of 1057136477 in words is "one billion, fifty-seven million, one hundred thirty-six thousand, four hundred seventy-seven".